Since 2007, Russian artists Alexej Lyapunov and Lena Erlich — collectively known as "Peopletoo" — have been creating dynamic artwork with one the oldest materials around: paper. Their work ranges from flat collages made up of multiple pieces of colored paper to incredibly detailed three-dimensional dioramas.

Peopletoo makes a living by crafting images for advertising, and recently wrapped up a campaign for the human rights charity Amnesty International. We spoke with Lyapunov and Erlich to learn more about their history, influences, and processes.